Rockwell Automation 1791-XXXX Discrete I/O AC and DC Block I/O Input and Output Modules - Manual (Page 12)

I/O Interface and System Design
Chapter 2
2-2
DC block input modules are compatible with 1771 series output modules if
the off-state leakage current of the module is less than the block module
minimum off-state current and the on-state voltage minimum of the dc
block input is greater than the supply voltage minus the on-state voltage
drop across the 1771 output module. Some 1771 I/O modules that meet
these specifications are:
1771-OB dc output driver module
1771-OBD dc (10–60V) output module
1771-OBN dc (10–30V) output module
Other Allen-Bradley products that are compatible with block inputs are
shown in Table 2.A.
Table 2.A
Compatibility of Other AllenĆBradley Products
Product AC DC Product AC DC
Contactors
Bulletin 100 100ĆA75 100ĆA45 (pure coil)
100ĆB180
(economized coil)
Bulletin 500 NEMA 0-2 NEMA 00
Outputs
Relays (Bulletin 700)
Outputs
Type F Yes Yes Type PK Yes Yes
Type N Yes No Type R Yes No
Type P Yes Yes Type RM Yes Yes
Type PH Yes Yes
Photoswitches
Series 4000 Yes Yes Series 6000 Yes Yes
Series 5000 Yes Yes Series 7000 Yes Yes
Inputs
Proximity Switches
Inputs
871C Yes Yes 871 Yes Yes
871L Yes Yes 871Z Yes Yes
871P Yes N/A 802PR see 1 N/A
871T Yes Yes 871T Yes Yes
1 Refer to individual switch specifications